Objective: This study was conducted to investigate the effect of polarized light therapy on incisional pain after (SC). Methods: Forty primipara women complaining from incisional pain post CS participated in this study. They had a single full term fetus during their gestation. The participant's ages ranged from 25-35 years. The control Group (Group A) were treated by traditional medical treatment immediately after recovery from anesthesia. The Study Group (Group B) were treated by traditional medical treatment immediately after recovery from anesthesia and polarized light therapy with energy density of an average of 2.4 J/cm2 15 minutes/session, one session /day for 5 consecutive days. Visual analogue scale (VAS) and electronic algometer were used to measure intensity of incisional pain post CS in both groups (A&B) before and after treatment. Results: Results of this study found that there was significant decrease of VAS and significant increase of pressure algometer after treatment in both groups A and B when compared with corresponding pre-treatment values (p<0.05). there was significant difference in mean values of VAS and pressure algometer between both groups (A and B) after treatment (p<0.05) (with favor of group B, more decrease VAS and more increase in pressure algometer). Conclusion: It can be concluded that polarized light therapy for 5 consecutive days' post SC is an effective adjuvant therapy in treatment of incisional pain through reducing visual analogue scale (VAS) and increasing electronic algometer.